first commit

2022-12-15 23:51:04 +07:00
commit 87d51fb251
292 changed files with 12623 additions and 0 deletions
@@ -0,0 +1,61 @@
+import java.util.*;
+
+public class Main {
+    
+    static class word {
+        String w;
+        int cnt, stt;
+
+        public word(String w, int i) {
+            this.w = w;
+            this.cnt = 1;
+            this.stt = i;
+        }
+
+        @Override
+        public String toString() {
+            return w + " " + cnt;
+        }
+    }
+
+    static boolean tn(String s) {
+        for (int i = 0; i < s.length() / 2; i++) {
+            if (s.charAt(i) != s.charAt(s.length() - 1 - i))
+                return false;
+        }
+        return true;
+    }
+
+
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        ArrayList<word> a = new ArrayList<>();
+        int index = 0;
+        while (sc.hasNext()) {
+            String s = sc.next();
+            if (!tn(s))
+                continue;
+            boolean oke = true;
+            for (int i = 0; i < a.size(); i++) {
+                if (a.get(i).w.compareTo(s) == 0) {
+                    oke = false;
+                    a.get(i).cnt += 1;
+                }
+            }
+            if (oke) {
+                a.add(new word(s, index));
+                index++;
+            }
+        }
+        a.sort((word x, word y) -> {
+            if (x.w.length() == y.w.length()) {
+                return x.stt - y.stt;
+            }
+            return y.w.length() - x.w.length();
+        });
+        a.forEach(e -> {
+            if (e.w.length() == a.get(0).w.length())
+                System.out.println(e);
+        });
+    }
+}